Hai Zhou UTC+8 created FLINK-8519: ------------------------------------- Summary: FileAlreadyExistsException on Start Flink Session Key: FLINK-8519 URL: https://issues.apache.org/jira/browse/FLINK-8519 Project: Flink Issue Type: Bug Components: YARN Affects Versions: 1.5.0 Reporter: Hai Zhou UTC+8 Fix For: 1.5.0
*steps to reproduce:* 1. build flink from source , git commit: c1734f4 2. run script: source /path/hadoop/bin/hadoop_user_login.sh hadoop-launcher; export YARN_CONF_DIR=/path/hadoop/etc/hadoop; export HADOOP_CONF_DIR=/path/hadoop/etc/hadoop; export JVM_ARGS="-Djava.security.krb5.conf=${HADOOP_CONF_DIR}/krb5.conf"; /path/flink-1.5-SNAPSHOT/bin/yarn-session.sh -D yarn.container-start-command-template="/usr/local/jdk1.8.0_112/bin/java %%jvmmem%% %%jvmopts%% %%logging%% %%class%% %%args%% %%redirects%%" -n 4 -nm job_name -qu root.rt.flink -jm 1024 -tm 4096 -s 4 -d *error infos:* 2018-01-27 00:51:12,841 ERROR org.apache.flink.yarn.cli.FlinkYarnSessionCli - Error while running the Flink Yarn session. java.lang.reflect.UndeclaredThrowableException at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1571) at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) at org.apache.flink.yarn.cli.FlinkYarnSessionCli.main(FlinkYarnSessionCli.java:786) Caused by: org.apache.flink.client.deployment.ClusterDeploymentException: Couldn't deploy Yarn session cluster at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deploySessionCluster(AbstractYarnClusterDescriptor.java:389) at org.apache.flink.yarn.cli.FlinkYarnSessionCli.run(FlinkYarnSessionCli.java:594) at org.apache.flink.yarn.cli.FlinkYarnSessionCli.lambda$main$2(FlinkYarnSessionCli.java:786) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1556) ... 2 more Caused by: org.apache.hadoop.fs.FileAlreadyExistsException: Path /user already exists as dir; cannot create link here at org.apache.hadoop.fs.viewfs.InodeTree.createLink(InodeTree.java:244) at org.apache.hadoop.fs.viewfs.InodeTree.<init>(InodeTree.java:334) at org.apache.hadoop.fs.viewfs.ViewFileSystem$1.<init>(ViewFileSystem.java:161) at org.apache.hadoop.fs.viewfs.ViewFileSystem.initialize(ViewFileSystem.java:161) at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2397) at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:89) at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2431) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2413) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:368) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:167) at org.apache.flink.yarn.AbstractYarnClusterDescriptor.startAppMaster(AbstractYarnClusterDescriptor.java:656) at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deployInternal(AbstractYarnClusterDescriptor.java:485) at org.apache.flink.yarn.AbstractYarnClusterDescriptor.deploySessionCluster(AbstractYarnClusterDescriptor.java:384) ... 7 more -- This message was sent by Atlassian JIRA (v7.6.3#76005)